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arXiv 1012.4355hep-ex
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高非弹性y下e{ \pm }p散射截面和结构函数FL的测量

Measurement of the Inclusive e{\pm}p Scattering Cross Section at High Inelasticity y and of the Structure Function FL

H1 Collaboration

摘要:

测量的包容性中性电流e \pm p散射截面使用的H1实验在HERA在2003年至2007年期间收集的数据与质子束能量Ep为920,575,和460 GeV。测量的运动学范围包括低的绝对四动量转移平方,1.5 GeV 2 < Q2 < 120 GeV 2,小的Bjorken x值,2.9 \cdot 10-5 < x < 0.01,并延伸到高非弹性,直到y = 0.85。结构函数FL的测量相结合的新的结果与先前公布的H1数据在Ep = 920 GeV和Ep = 820 GeV。新的测量被用来测试几个唯象和QCD模型适用于这个低Q2和低x运动域。

英文摘要:

A measurement is presented of the inclusive neutral current e\pm p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies Ep of 920, 575, and 460 GeV. The kinematic range of the measurement covers low absolute four-momentum transfers squared, 1.5 GeV2 < Q2 < 120 GeV2, small values of Bjorken x, 2.9 \cdot 10-5 < x < 0.01, and extends to high inelasticity up to y = 0.85. The structure function FL is measured by combining the new results with previously published H1 data at Ep = 920 GeV and Ep = 820 GeV. The new measurements are used to test several phenomenological and QCD models applicable in this low Q2 and low x kinematic domain.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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